Results 101 to 110 of about 124,338 (379)

Mechanisms of base selection by the E.coli mispaired uracil glycosylase [PDF]

, 2008
The repair of the multitude of single-base lesions formed daily in the cells of all living organisms is accomplished primarily by the base-excision repair (BER) pathway that initiates repair through a series of lesion-selective glycosylases.
Darwanto, Agus, Goddard, William, III, Liu, Pingfang, Pascal, Tod, Sowers, Lawrence C., Theruvathu, Jacob A., Valinluck Lao, Victoria   +6 more
core   +2 more sources

Synthesis of 1,4-Disubstituted Mono and Bis-triazolocarbo-acyclonucleoside Analogues of 9-(4-Hydroxybutyl)guanine by Cu(I)-Catalyzed Click Azide-Alkyne Cycloaddition [PDF]

, 2011
A series of novel mono-1,2,3-triazole and bis-1,2,3-triazole acyclonucleoside analogues of 9-(4-hydroxybutyl)guanine was prepared via copper(I)-catalyzed 1,3-dipolar cycloaddition of N-9 propargylpurine, N-1-propargylpyrimidines/as-triazine with the ...
Engels, Joachim W., Krim, Jamal, Taourirte, Mohamed   +2 more
core   +2 more sources

What the difference between Thymine and Uracil? [PDF]

arXiv, 2009
The wobble hypothesis does not discriminate between uracil and thymine. Methylation could favor further stabilization of uracil in the keto form. Thymine is present in keto form only and can pair up but with adenine. Uracil can easily construct the enol form; that is why it forms the U-G pair.
arxiv  

Anharmonic Vibrational Dynamics of DNA Oligomers [PDF]

, 2008
Combining two-color infared pump-probe spectroscopy and anharmonic force field calculations we characterize the anharmonic coupling patterns between fingerprint modes and the hydrogen-bonded symmetric NH$_2$ stretching vibration in adenine-thymine dA$_{20}$-dT$_{20}$ DNA oligomers.
arxiv   +1 more source

Helicobacter pylori Detection Based on Synergistic Electromagnetic and Chemical Enhancement of Surface‐Enhanced Raman Scattering in 3D Hotspot‐Activated Gold Nanorods/Nano Mica Platelets/ZnO Quantum Dots

Advanced Science, EarlyView.
Gold nanorods hybridized with nano mica platelets and ZnO quantum dots are used for the rapid, sensitive, selective, and reproducible surface‐enhanced Raman scattering‐based detection of Helicobacter pylori in different scenarios. The origin of this high performance is ascribed to the synergy between the three operational enhancement mechanisms and the
Ming‐Chang Lu, Yung‐Chi Yang, Chia‐Jung Lee, Chih‐Wei Chiu   +3 more
wiley   +1 more source

WTAP Mediated m6A Modification Stabilizes PDIA3P1 and Promotes Tumor Progression Driven by Histone Lactylation in Esophageal Squamous Cell Carcinoma

Advanced Science, EarlyView.
This study reveals a new mechanism by which PDIA3P1 regulates the progression of esophageal squamous cell carcinoma (ESCC). PDIA3P1 upregulates the expression of GLUT1 and HK2, promoting glycolysis and lactate production. Lactate upregulates the lactylation level of histone H4K8 and activates the transcription of target gene BMP7, ultimately ...
Tao Huang, Qi You, Jiawei Liu, Xuguang Shen, Dengjun Huang, Xinlu Tao, Zhijie He, Chengwei Wu, Xinran Xi, Shouqiang Yu, Feng Liu, Zhihao Wu, Wenjun Mao, Shaojin Zhu   +13 more
wiley   +1 more source

Separation of oxidatively damaged DNA Nucleobases and Nucleosides on Packed and Monolith C18 Columns by HPLC-UV-EC [PDF]

, 2008
This study involves the incorporation of a commercially available Phenomenex Onyx C18 monolith column into the separation and detection of oxidative DNA damage.
Kelly, Michele C., Smyth, Malcolm R., White, Blánaid   +2 more
core   +1 more source

A Transcriptome‐Wide Mendelian Randomization Study in Isolated Human Immune Cells Highlights Risk Genes Involved in Viral Infections and Potential Drug Repurposing Opportunities for Schizophrenia

American Journal of Medical Genetics Part B: Neuropsychiatric Genetics, EarlyView.
ABSTRACT Schizophrenia is a neurodevelopmental psychiatric disorder characterized by symptoms of psychosis, thought disorder, and flattened affect. Immune mechanisms are associated with schizophrenia, though the precise nature of this relationship (causal, correlated, consequential) and the mechanisms involved are not fully understood.
David Stacey, Liam Gaziano, Preethi Eldi, Catherine Toben, Beben Benyamin, S. Hong Lee, Elina Hyppönen   +6 more
wiley   +1 more source

Thymineless Death, at the origin

Frontiers in Microbiology, 2015
Thymineless death (TLD) in bacteria has been a focus of research for decades. Nevertheless, the advances in the last five years, with Escherichia coli as the model organism, have been outstanding.
Elena C Guzmán, Carmen eMartín
doaj   +1 more source

A Cytotoxic Indazole-based Gold(III) Carboxamide Pincer Complex Targeting DNA Through Dual Binding Modes of Groove Binding and Alkylation. [PDF]

Chemistry
Toward new gold(III) anticancer agents. Herein, we report on an indazole‐based gold(III) carboxamide pincer complex exhibiting significant cytotoxicity, likely mediated through dual interactions with DNA. Mechanistic investigations suggest that the complex binds to the DNA and forms specific interactions with nucleotide bases.
Razuwika R, Sookai S, Aronson R, Kaur M, Munro OQ.   +4 more
europepmc   +2 more sources